Mechanical Engineering
2017 · Paper 1
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Complete GATE ME 2017 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 43–45 of 65. Imported answers require review unless explicitly marked reviewed.
Question 43
Open questionME-1NAT2 marksNeeds review
A machine element has an ultimate strength (
) of 600 N/mm², and endurance limit (
) of 250 N/mm². The fatigue curve for the element on a log-log plot is shown below. If the element is to be designed for a finite life of 1000 cycles, the maximum amplitude of a completely reversed operating stress is __________ N/mm². 
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Open questionME-1NAT2 marksNeeds review
A horizontal bar, fixed at one end (
), has a length of 1 m, and cross-sectional area of 100 mm². Its elastic modulus varies along its length as given by
GPa, where
is the length coordinate (in m) along the axis of the bar. An axial tensile load of 10 kN is applied at the free end (
). The axial displacement of the free end is __________ mm.Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 45
Open questionME-1NAT2 marksNeeds review
In an epicyclic gear train, shown in the figure, the outer ring gear is fixed, while the sun gear rotates counterclockwise at 100 rpm. Let the number of teeth on the sun, planet and outer gears to be 50, 25, and 100, respectively. The ratio of magnitudes of angular velocity of the planet gear to the angular velocity of the carrier arm is __________.
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